4X67

Crystal structure of elongating yeast RNA polymerase II stalled at oxidative Cyclopurine DNA lesions.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.1 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.242 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Mechanism of RNA polymerase II bypass of oxidative cyclopurine DNA lesions.

Walmacq, C.Wang, L.Chong, J.Scibelli, K.Lubkowska, L.Gnatt, A.Brooks, P.J.Wang, D.Kashlev, M.

(2015) Proc.Natl.Acad.Sci.USA 112: E410-E419

  • DOI: 10.1073/pnas.1415186112
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • In human cells, the oxidative DNA lesion 8,5'-cyclo-2'-deoxyadenosine (CydA) induces prolonged stalling of RNA polymerase II (Pol II) followed by transcriptional bypass, generating both error-free and mutant transcripts with AMP misincorporated immed ...

    In human cells, the oxidative DNA lesion 8,5'-cyclo-2'-deoxyadenosine (CydA) induces prolonged stalling of RNA polymerase II (Pol II) followed by transcriptional bypass, generating both error-free and mutant transcripts with AMP misincorporated immediately downstream from the lesion. Here, we present biochemical and crystallographic evidence for the mechanism of CydA recognition. Pol II stalling results from impaired loading of the template base (5') next to CydA into the active site, leading to preferential AMP misincorporation. Such predominant AMP insertion, which also occurs at an abasic site, is unaffected by the identity of the 5'-templating base, indicating that it derives from nontemplated synthesis according to an A rule known for DNA polymerases and recently identified for Pol II bypass of pyrimidine dimers. Subsequent to AMP misincorporation, Pol II encounters a major translocation block that is slowly overcome. Thus, the translocation block combined with the poor extension of the dA.rA mispair reduce transcriptional mutagenesis. Moreover, increasing the active-site flexibility by mutation in the trigger loop, which increases the ability of Pol II to accommodate the bulky lesion, and addition of transacting factor TFIIF facilitate CydA bypass. Thus, blocking lesion entry to the active site, translesion A rule synthesis, and translocation block are common features of transcription across different bulky DNA lesions.


    Organizational Affiliation

    Center for Cancer Research, National Cancer Institute, Frederick, MD 21702;




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB1
A
1733Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPO21 (RPB1, RPB220, SUA8)
EC: 2.7.7.6
Find proteins for P04050 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P04050
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB2
B
1224Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB2 (RPB150, RPO22)
EC: 2.7.7.6
Find proteins for P08518 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P08518
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB3
C
318Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB3
Find proteins for P16370 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P16370
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC1
E
215Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB5 (RPA7, RPC9)
Find proteins for P20434 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P20434
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC2
F
155Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPO26 (RPB6)
Find proteins for P20435 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P20435
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC3
H
146Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB8
Find proteins for P20436 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P20436
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB9
I
122Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB9
Find proteins for P27999 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P27999
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC5
J
70Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB10
Find proteins for P22139 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P22139
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB11
K
120Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB11
Find proteins for P38902 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P38902
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC4
L
70Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPC10 (RPB12)
Find proteins for P40422 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P40422
Entity ID: 11
MoleculeChainsLengthOrganism
RNA_9 merR9synthetic construct
Entity ID: 12
MoleculeChainsLengthOrganism
Template DNA _29 merT29synthetic construct
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B, C, I, J, L
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
02I
Query on 02I
T
DNA LINKINGC10 H12 N5 O6 P

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.1 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.242 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 167.146α = 90.00
b = 220.798β = 100.25
c = 193.919γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data scaling
PDB_EXTRACTdata extraction
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM085136 and GM102362
Sidney Kimmel Foundation for Cancer ResearchUnited StatesThe Kimmel Scholar Award
Skaggs School of Pharmacy and Pharmaceutical Sciences, UCSDUnited Statesstart-up funds

Revision History 

  • Version 1.0: 2015-02-04
    Type: Initial release
  • Version 1.1: 2015-02-11
    Type: Database references
  • Version 1.2: 2016-04-06
    Type: Other
  • Version 1.3: 2017-09-20
    Type: Author supporting evidence, Derived calculations, Refinement description
  • Version 1.4: 2017-10-04
    Type: Author supporting evidence